20875218

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{173}}^1$

素因数の和:228

約数の個数: 96

約数和(自身を含む): 55022976

約数和(自身を除く): 34147758

約数列:

[1, 2, 3, 6, 7, 13, 14, 17, 21, 26, 34, 39, 42, 51, 78, 91, 102, 119, 169, 173, 182, 221, 238, 273, 338, 346, 357, 442, 507, 519, 546, 663, 714, 1014, 1038, 1183, 1211, 1326, 1547, 2249, 2366, 2422, 2873, 2941, 3094, 3549, 3633, 4498, 4641, 5746, 5882, 6747, 7098, 7266, 8619, 8823, 9282, 13494, 15743, 17238, 17646, 20111, 20587, 29237, 31486, 38233, 40222, 41174, 47229, 58474, 60333, 61761, 76466, 87711, 94458, 114699, 120666, 123522, 175422, 204659, 229398, 267631, 409318, 497029, 535262, 613977, 802893, 994058, 1227954, 1491087, 1605786, 2982174, 3479203, 6958406, 10437609, 20875218]

約数ペア:

[(1, 20875218), (2, 10437609), (3, 6958406), (6, 3479203), (7, 2982174), (13, 1605786), (14, 1491087), (17, 1227954), (21, 994058), (26, 802893), (34, 613977), (39, 535262), (42, 497029), (51, 409318), (78, 267631), (91, 229398), (102, 204659), (119, 175422), (169, 123522), (173, 120666), (182, 114699), (221, 94458), (238, 87711), (273, 76466), (338, 61761), (346, 60333), (357, 58474), (442, 47229), (507, 41174), (519, 40222), (546, 38233), (663, 31486), (714, 29237), (1014, 20587), (1038, 20111), (1183, 17646), (1211, 17238), (1326, 15743), (1547, 13494), (2249, 9282), (2366, 8823), (2422, 8619), (2873, 7266), (2941, 7098), (3094, 6747), (3549, 5882), (3633, 5746), (4498, 4641)]